package com.example.demo.aspect;

import com.example.demo.vo.ResultVO;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * 使用AOP处理请求
 * Created by hongzhenyue on 18/2/28.
 */
@Aspect
@Component
public class HttpAspect {
    private final static Logger logger = LoggerFactory.getLogger(HttpAspect.class);

    @Pointcut("execution(public * com.example.demo.controller.EmailController.*(..))")
    public void log() {

    }

    @Before("log()")
    public void doBefore(JoinPoint joinPoint) {
        logger.info("before request");
        //纪录请求信息
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        //url
        logger.info("url={}", request.getRequestURL());
        //method
        logger.info("method={}", request.getMethod());
        //ip
        logger.info("ip={}", request.getRemoteAddr());
        //类方法
        logger.info("class_method={}", joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        //参数
        logger.info("args={}", joinPoint.getArgs());
    }

    @After("log()")
    public void doAfter() {
        logger.info("After request");
    }

    //打印出返回结果
    @AfterReturning(returning = "object", pointcut = "log()")
    public void doAfterReturning(ResultVO object) {
//        if (null != object)
            logger.info("response={}", object.toString());
    }
}
